56results about How to "Guaranteed safe use" patented technology

The invention relates to the field of computer information security, and discloses a safe and convenient key management mechanism. The key management mechanism comprises the following steps: firstly, primitively initializing cryptographic equipment in an initial state, and then generating an equipment signature key and an administrator signature key; issuing all administrator certificates, and then generating a backup key, a backup equipment key and a memory equipment key to finish primitive initialization; and electrifying for initializing the cryptographic equipment in a ready state. By adopting the technical scheme, the key management mechanism ensures key safety management, and ensures key safety use by explaining the initialization mode and process through various types of key initialization, thus solving the problem of realizing the safety and reliability of the cryptographic equipment in terms of key management and use.

A multifunctional trash can, comprising a trash can shell (1), a trash can cover (2), a solar panel (3), a trash can pillar (5) and a trash can body, and the trash can cover is fixed on the garbage can through the trash can pillar Directly above the box shell, the garbage box body is divided into a recyclable garbage box (7) and a non-recyclable garbage box (8); the garbage box cover includes two cover edges, and solar panels (3) are installed on the two cover edges. Fly-killing electric wire (4) is all installed below; The dustbin shell inwall is provided with accumulator (9), and the outer wall is provided with charging socket (10); The door of recycling garbage bin and non-recyclable garbage bin is provided with voice announcer (12); storage battery is connected with solar panel, fly-killing electric wire, charging socket, induction switch, voice announcer respectively. The dustbin has multiple functions, all of which are realized through solar panels, and is easy to use, energy-saving and environment-friendly.

The invention provides a method for online detection of roll cooling, which comprises the following steps: coating a coating material with the thickness of 0.01 to 0.05 millimeter on the surface of aroll; placing the coated roll into a stander in a normal production state; jetting cooling water onto the fixed roll for 5 to 6 minutes; and judging the working condition of a roll cooling water system according to the peeling-off state of the coating material on the surface of the roll so that the cooling problems such as nozzle abrasion, blockage, deflection, frame deformation and the like can be timely discovered. The method has accuracy and timeliness, and can improve the productivity and ensure the safety of production.

The invention discloses a control device for a food waste processor and a control method of the control device. The control device comprises a food waste processor body, wherein the food waste processor body is of a hollow structure; a PLC (Programmable Logic Controller) is arranged on one end of the food waste processor body, and comprises a timer, a display device, control keys and a control chip; the timer, the display device and the control keys are all electrically connected with the control chip; a feed hopper is arranged on one side of the PLC, and extends into the food waste processor body; an infrared detector is arranged in one end, close to the food waste processor body, of the feed hopper; a sliding cover plate is arranged on the bottom part of the feed hopper. According to the control device for the food waste processor and the control method of the control device, disclosed by the invention, a pressure pump and a clean shower are controlled through the control chip so as to clean a smashing tool set, so that the service time of the tool set is prolonged, the control chip reminds a user of replacing a cleaning box through a pressure sensor, the automation degree of the whole device is improved, and the requirements of modern intelligent household electrical appliances are met.

The invention discloses an electric van truck battery pack control system and method. The system comprises a battery pack control system, a vehicular monitoring system, a motor controller, a display instrument, a vehicular charger, a total negative relay, a DC / DC relay and an insulation monitoring unit, wherein the vehicular monitoring system, the motor controller, the display instrument and the vehicular charger are respectively connected with the battery pack control system. The battery pack control system comprises a battery pack control system main module and a slave control module which are connected through a CAN (controller area network) bus. The total negative relay, the DC / DC relay and the insulation monitoring unit are respectively connected with the battery pack control system, and the insulation monitoring unit is arranged inside a battery box. The vehicular monitoring system comprises a primary alarm unit and a secondary alarm unit.

The invention relates to a method for producing a medical rubber bottle cork made of dual composite materials, belonging to the technical field of medical bottle corks. A cap plug and a neck plug are made of different types of rubbers and the composite rubber is obtained by a sulfidation process. In the invention, the part that touches the medical liquid in the bottle adopts highly stable rubber, and the part that dose not touch the medical liquid adopts ordinary medical rubber, thereby reducing the production cost and improving the economic benefit on the premise of ensuring safety.

The invention relates to a charging pile convenient to store. The charging pile comprises a base, a body, a charging wire, a guide wheel, a charging mechanism and a storage box. A storage mechanism isarranged in the storage box. The charging mechanism comprises a cover plate, a charging gun, an upper shell, a lower shell and a drying assembly. The drying assembly comprises a lifting unit, a lifting plate, a net cover and two infrared modulator tubes. The storage mechanism comprises a horizontal movement assembly, a first cylinder, a first piston, a connecting pipe, a second cylinder, a secondpiston, a transverse rod, a supporting rod, a limiting unit, a fixed plate and a movable plate. According to the charging pile convenient to store, the charging wire can be conveniently stored through the storage mechanism, the charging wire is prevented from being dragged and worn on the ground, the service life of the charging wire is prolonged, the charging gun is kept to synchronously move together with the upper shell and the lower shell all the time in the storage process, the damp-proof treatment can be performed on the placement environment of the charging gun through the drying assembly below the charging gun, the safe use of the charging gun is ensured, and the practicability of the device is improved.

The invention discloses an air conditioning system which comprises an indoor part and an outdoor part, wherein the indoor part comprises an indoor heat exchanger, an air outlet and an air outlet channel for communicating the indoor heat exchanger with the air outlet; the outdoor part comprises an electric control box assembly; the electric control box assembly comprises a box body and a control element arranged in the box body; the box body is provided with an air inlet and an air outlet; the air inlet is communicated with the air outlet channel through a cooling air duct; a fan is arranged in the cooling air duct; and in the refrigeration process of the air conditioning system, the fan rotates to guide the air in the air outlet channel to the air inlet. The air conditioning system is beneficial to enhancing the heat dissipation effect of the control element, and can avoid generating condensation water around the control element, thereby ensuring the safe use of the control element, lowering the failure rate of the control element and prolonging the service life of the control element.

The invention discloses a waterproofing door of portable electronic equipment. The waterproofing door is assembled at a waterproof opening of the electronic equipment and comprises a rigid inner core; an elastic outer sleeve matched with the waterproof opening of the electronic equipment in shape wraps the rigid inner core, and the rigid inner core is embedded in the elastic outer sleeve, so thatthe rigid inner core and the elastic outer sleeve form an inseparable integrity. The invention provides the waterproofing door of the portable electronic equipment, which is reliable and waterproof, and not only has certain elasticity to form high-grade sealing, but also has rigidity to support the waterproofing door and prevent the waterproofing door from deformation.

The invention relates to the field of alumina production, in particular to slurry storage equipment used in the alumina industry, solves the problems that the baseplate of conventional storage equipment is susceptible to abrasion and the impeller of a discharging pump is susceptible to damage, and can prolong the service life of the storage equipment which is simple in structure and protect associated equipment. According to the storage equipment, guide skewed slots tilting down are formed in a tank body; the higher ends of the guide skewed slots are connected with a feed opening; the lower parts of the lower end outlets of the guide skewed slots correspond to anti-impact cones; the anti-impact cones are arranged at the bottom in the tank body and fixed on the baseplate of the tank body; slurry down from the guide skewed slots can flow onto the anti-impact cones, so that the slurry are prevented form impacting the baseplate of the tank body when flowing down. The discharge openings I of the storage equipment are formed in the bottom of the tank body and are higher than an emptying opening; meanwhile, screen stencils are arranged at the discharge openings II of the inner wall of the tank body. Thus, the steel balls, which become smaller due to abrasion, cannot flow out along with the slurry through the discharge openings I, so that the safe use of the discharging pump is ensured.

The invention discloses automatic cooling, heat dissipation and sealing equipment for a lithium battery. The equipment comprises a machine body, and a driving cavity 66 is formed in the machine body 10; cooling cavities 67 are respectively formed in the left side and the right side of the machine body 10; a driving device 70 for driving the equipment is arranged in the driving cavity 66; the driving device 70 comprises a main motor 11 fixedly installed on the left side wall of the driving cavity 66, when the lithium battery is used for a long time and the temperature rises, the equipment can be automatically started, the lithium battery is cooled, cooling liquid is recycled, the lithium battery is rapidly cooled, and safe use of the lithium battery is guaranteed.

The invention discloses a method and a device for realizing encrypted dialing information display, and a communication terminal. Due to the establishment of a display control parameter for dialing information and by setting the parameter and dynamically monitoring a set value, dialing information encryption processing during the process of telephone customer service is realized without influencing original telephone customer services, and safe use of telephone customer services is ensured. The method and the device provided by the invention can be widely used telephone customer services requiring encryption processing such as telephone banking and can be applied in fixed-line and mobile communication.

The invention relates to a photovoltaic inverter control method capable of improving the power quality of a distribution network. The method comprises the steps that 1 the first control state of independent filter control: when a non-linear load is enabled on a user side, a load side sensor detects voltage and current, and calculates THDu and harmonic current in real time through an instantaneousreactive power method; when the load side THDu is higher than the limit and lasts for N power frequency cycles, compensation current is calculated based on the remaining capacity of photovoltaic grid-connected inverters, and harmonics are filtered out; and 2 the second control state of multi-inverter linkage filter control: when the load side sensor detects that THDu is below the limit and lasts for N power frequency cycles, the inverters stop the first control state; after an energy storage module is charged, the inverters can enter the second control state, and multiple inverters can coordinate to compensate power grid harmonics. According to the invention, the cost of improving the power quality can be reduced, and at the same time the user's profit is ensured.

The invention relates to a quick-opening stop valve. The quick-opening stop valve comprises a valve body, a valve deck, a valve rod and a valve clack; a partition plate is fixedly arranged inside thevalve body and divides the interior of the valve body into an upper cavity and a lower cavity, a through groove is formed in the partition plate, the valve rod penetrates through the valve deck and isin threaded connection with the valve deck, and the valve clack is located at the end, deep into the valve body, of the valve rod; the valve clack is used for plugging the through groove, a pipelinebreaking channel is formed inside the valve deck, the pipeline breaking channel is formed in the length direction of the valve deck and parallel to the central axis of the valve deck, the pipeline breaking channel sequentially breaks threads arranged inside the valve deck, a plurality of sliding blocks are fixedly arranged on the outer wall of a valve rod, the adjacent sliding blocks are arrangedin the length direction of the valve rod, the connecting line of the adjacent sliding blocks is parallel to the circuit breaking channel. The valve rod and the central axis of the valve deck are collinear, the valve rod rotates around the central axis, and the sliding blocks adaptively slide relative to internal threads of the valve deck; the sliding blocks rotate to the pipeline breaking channeland can slide in the length direction of the pipeline breaking channel. The quick-opening stop valve has the effects of quickly opening the stop valve and coping with emergencies.

The invention relates to the technical field of pipeline monitoring alarm, in particular to a pipeline leakage monitoring alarm system and a positioning method. The pipeline leakage monitoring alarm system comprises monitoring terminals, a network, a signal collector, a monitoring alarm positioning equipment and an oil conveying pipeline. The monitoring alarm positioning equipment is installed onthe oil conveying pipeline and at the oil conveying pipe first end and the oil conveying pipe tail end of the oil conveying pipeline in a matched mode, the monitoring alarm positioning equipment is connected with the monitoring terminals through the signal collector, the monitoring terminals are connected through the network, and the monitoring terminals are connected with the monitoring center through the network. According to the pipeline leakage monitoring alarm system and the positioning method, the oil conveying pipeline can be monitored in real time, the problems that petroleum is wastedand the oil conveying potential safety hazards appear due to the fact that the oil conveying pipe is leaked and the detection and positioning are not in time can be solved, the petroleum is automatically detected and reported, leakage data are accurately detected, manpower, material resources and financial resources are saved, and the environmental pollution is reduced.

The invention belongs to the technical field of line safety, in particular to a high-voltage transmission line protection method. The protection component in the method comprises a main body, a starter switch, a heat dissipation unit, a fixing clasp, a connecting unit, a fixing seat, an automatic rotating device and a fuse. The upper end of the main body is provided with a start switch; A main body of that invention is connected with a main device through a fixed clasp. A connecting unit composed of a plurality of groups of automatic rotating devices is arranged inside the main body; At the same time of power off, the electromagnet loses power, and the spiral rod pushes the radiating fan to rotate by disconnecting the control of the radiating fan, so as to realize the function of radiatingheat; The invention can immediately disconnect and energize when the transmission line fails, effectively avoids the fire caused by the transmission line failure, prevents the occurrence of possibleelectric shock accident, ensures the safety while realizing the right, and can automatically restore the line connection according to the line, so that the working personnel can reduce the number of replacing the fuses.

The invention discloses a variable voltage driving circuit comprising a single-chip microcomputer, a voltage step-up circuit, a detection circuit, a protection circuit and a lamp string. When rated power of the driving circuit is not exceeded, the driving circuit can be used for driving LED lamp strings of all kinds of power and all kinds of connection modes, and working voltage needed for driving the lamp string of the driving circuit can be provided via control of the single-chip microcomputer, a voltage transformation circuit and the detection circuit according to LED lamp string load change.

The invention relates to an employment and entrepreneurship teaching device which comprises a host, a display screen, a first operating mechanism and a second operating mechanism. A motor works to drive a threaded rod to rotate, then a supporting sliding arm is driven to move from one end of a side groove, and when moving, a liquid pump works to convey disinfectant fluid in a liquid storage box into a groove hole of a rotating rod through a guide pipe, and finally the disinfectant fluid enters a first spraying base through a connecting channel to be sprayed out to disinfect a keyboard, when the supporting sliding arm starts to return to the original position, the liquid pump stops working, the first air heater starts to work to convey hot air into the second spraying base to be sprayed out, the surface of the keyboard is dried, and after the mouse is used, the liquid pump works to convey disinfectant fluid to the spraying head through the internal channel to be sprayed out, so that the mouse is disinfected and cleaned; and then, a second air heater works to convey hot air to a spray head through an internal channel to be sprayed out, the mouse is dried, disinfection of the keyboard and the mouse is completed, indirect contact of a user is avoided, and safe use is guaranteed.

The invention discloses an environment network for detecting the content of silver ions based on an aldehyde group chip and silver nanoparticles. The environment network comprises a host node computer(10), wherein the host node computer (10) is in wireless signal connection with multiple sensors of preset type; the sensors of preset type are mounted in a heat distribution pipeline (3) and a watersupply pipeline (6) paved in underground space (100) and on the side wall of the underground space; the sensors of preset type are used for acquiring the detection data of corresponding underground space. The environment network for detecting the content of silver ions based on an aldehyde group chip and silver nanoparticles disclosed by the invention can perform all-round monitoring safely and reliably on the environment of the underground pipe network and particularly effective detection on the content of silver ions in the water conveyed through the underground pipeline, and also can reduce potential risks against the underground pipeline so as to guarantee the use safety of the underground pipe network, and thus promotes wide application and has a great significance in production practice.

The invention provides a control signal judging method and system for a single-barrier-gate in-out mixed lane. A door-in triggering sense coil, a door-out triggering sense coil and a smashing-preventing triggering sense coil are arranged on the single-barrier-gate in-out mixed lane, and the smashing-preventing triggering sense coil is located between the door-in triggering sense coil and the door-out triggering sense coil. The method comprises the following steps that when a barrier gate receives an opening signal, if the opening signal is not sent by a controller, the controller judges whether a triggering signal is sent by a controller of the other side to a sense coil trigger or not; if yes, the barrier gate opening signal is a legal signal, the barrier gate continues to be opened; andif no, the barrier gate triggering signal is an illegal signal. Through the judging method and system, whether the opening signal of the barrier gate on the single-barrier-gate in-out mixed lane is illegal signal or not can be judged, and safe using of the barrier gate is ensured.

The invention relates to the technical field of drilling fishing tools, in particular to a releasing unlocking device which comprises an unlocking device body, locking rings and screws. The unlocking device body is cylindrical, a lower inner ring groove is formed in the inner side of the lower portion of the unlocking device body, a lower cone frustum hole with the upper opening smaller than the lower opening is formed in the inner side of the lower end of the unlocking device body, and the lower inner ring groove is located above the lower cone frustum hole in a spaced mode. An open groove is formed in the side wall of the unlocking device body in the axis direction, one or more outer ring grooves are formed in the outer side of the unlocking device body from top to bottom at intervals, and the locking rings capable of sealing the portions, where the locking rings are located, of the open groove are fixedly mounted in the outer ring grooves through the screws. By means of the releasing unlocking device, an instrument can be replaced and repaired through fishing releasing under the condition that a drill is not lifted, in addition, the instrument can be unlocked and released after being stuck during fishing, safe use of a cable and a fishing winch is ensured, operation is easy, time and labor are saved, the process is convenient and efficient, the operation cost can be greatly lowered, and restriction on drilling construction can be relieved.

The invention relates to a remote medical device which comprises a base, a host and a baffle. The host is provided with a camera, a touch screen, a pallet, an identification mechanism and an input mechanism. The identification mechanism comprises an identification box, a cover plate, a connection component, and an identification component arranged in the identification box. The identification component comprises a near-infrared light, a CCD, a translation plate, a horizontal plate, a support rod, a far-infrared light, an ultraviolet light and two translation units. The input mechanism comprises an input box, a seal cover, and an input component arranged in the input box. The remote medical device can identify the palm veins of a patient through the identification mechanism, which facilitates the identity identification of the patient, facilitates the patient to log in to a remote medical system. The ultraviolet light and the far-infrared light are used for sterilization and disinfection to ensure the safe use of the identification mechanism. The input mechanism is conveniently connected with the smart wearable device of the patient, so that the recent living conditions of the patient can be accurately passed, and a physician can make a correct judgment. The practicability of the device is improved.

The invention discloses a radial and circumferential deformation measuring method and a system for a high-temperature and high pressure working cylinder. The radial and circumferential deformation measuring method includes the following steps: sampling marks on the high-temperature and high pressure working cylinder to acquire first information; analyzing the first information to acquire second information; analyzing stress on the high-temperature and high pressure working cylinder to acquire third information; processing the second information and the third information to acquire fourth information; and storing and outputting the second information and the fourth information. The radial and circumferential deformation measuring method and the system for the high-temperature and high pressure working cylinder have the advantages that radial and circumferential deformation measurement on the high-temperature and high pressure working cylinder can be detected in real time, evaluation on the service life of the high-temperature and high pressure working cylinder from radial deformation and circumferential deformation can be carried out sequentially, potential safety hazards when the high-temperature and high pressure working cylinder works can be effectively solved, and accumulated experience and actual use effects can be provided for designers when the designers improve or optimize design of the high-temperature and high pressure working cylinder.

The invention relates to the technical field of switching devices, in particular to a circuit breaker with an on-off and take-off three-color indication structure, which comprises a shell, a bracket is arranged at the upper part in the shell, a handle is arranged at the top of the bracket, an indicator is arranged at one side of the handle, and a contact support arm is arranged in the shell and connected with the lower part of the handle. According to the design of the invention, various states can be respectively displayed through the three states of the disconnection indication area, the take-off indication area and the connection indication area by the indicator, the problem of misjudgment is avoided, flexible disconnection of the device during current overload can be facilitated through the tripping mechanism, safe use of the device is guaranteed, and an arc can be conveniently led into the arc extinguishing chamber through the end tab horizontally arranged on the lower portion inthe shell, so that the arc is eliminated.

The invention relates to a testing device with a damp-proof function for computer software development. The device comprises a base, a host, a starting mechanism, a sealing frame and an operating mechanism, the starting mechanism comprises a fixing pipe, a switch, a protective cover, a sealing block and a plurality of telescopic assemblies. Each telescopic assembly comprises a vertical rod, a transverse plate and a spring; the operation mechanism comprises an operating plate, a rotating assembly, a driving assembly, a translation strip, a supporting rod and two lifting assemblies; a display screen, a wiring hole and a plurality of keys are arranged on the front surface of the operation panel. According to the testing device with the moisture-proof function for computer software development, the lifting movement of the host and the rotation of the operation panel can be realized at the same time through the operation mechanism; when the equipment is not used, the operation plate can conveniently lean against the bottom of the host, the sealing frame is used for sealing treatment, damp is prevented, safe use of the equipment is guaranteed. In addition, in the starting mechanism, thesealing block and the protective cover are used for sealing protection and damp prevention of the switch, and therefore the practicability of the equipment is improved.

The invention provides a circuit board assembly and an air conditioner. The circuit board assembly comprises a circuit board, a first conductive part and a first insulating part, the first conductivepart comprises a first power connection section and a first connection section, the first power connection section is arranged on the circuit board through the first connection section, and at least one part of the first insulating part is arranged between the first power connection section and the circuit board. According to the circuit board assembly and the air conditioner provided by the embodiment of the invention, the electrical insulation safety of the circuit board assembly can be improved, and safe use of the circuit board assembly is ensured.

The invention discloses a portable multifunctional safety type medical sharp instrument box which comprises a horizontally-arranged cylindrical box body, external threads are arranged on the outer wall of the upper end of the box body, the box body is in threaded connection with a lower sealing cover through cooperation of the external threads and internal threads formed in the inner wall of the lower sealing cover, and a hook is fixedly connected to the outer wall of the box body. The box cover assembly comprises a lower sealing cover connected to the external threads in a threaded mode, a middle sealing cover is rotatably connected to the interior of the lower sealing cover, a first round hole is formed in the upper end of the middle sealing cover, and a directional bearing joint is arranged in the first round hole; the defects that many key links, including separation of scalp needles, arrangement of a throwing hole, incapability of visually observing the number of sharp instruments, random splashing of needle heads in the box, inconvenience in taking and placing, inconvenience in cleaning and the like, which are easily punctured in the aspect of the sharp instrument box are found through clinical work are overcome.

The invention discloses an environment network for detecting the content of mercury ions based on an aldehyde group chip and gold nanoparticles. The environment network comprises a host node computer(10), wherein the host node computer (10) is in wireless signal connection with multiple sensors of preset type; the sensors of preset type are mounted in a heat distribution pipeline (3) and a watersupply pipeline (6) paved in underground space (100) and on the side wall of the underground space; the sensors of preset type are used for acquiring the detection data of corresponding underground space. The environment network for detecting the content of mercury ions based on an aldehyde group chip and gold nanoparticles disclosed by the invention can perform all-round monitoring safely and reliably on the environment of the underground pipe network and particularly effective detection on the content of mercury ions in the water conveyed through the underground pipeline, and also can reducepotential risks against the underground pipeline so as to guarantee the use safety of the underground pipe network, and thus promotes wide application and has a great significance in production practice.